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xen-bugs
[Xen-bugs] [Bug 1015] New: hung of dom0 and others after rmmod xennet
http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1015
Summary: hung of dom0 and others after rmmod xennet
Product: Xen
Version: unspecified
Platform: x86
OS/Version: All
Status: NEW
Severity: blocker
Priority: P3
Component: Unspecified
AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
ReportedBy: marco.strullato@xxxxxxxxx
Hi, my xen server hungs.
I have domain0 with 2 other virtual machines runnins.
dom0, dom1 and dom2 are linux fedora6.
I need three network interfaces in dom1 and dom2 so I add something like that
vif = [ 'mac=00:16:3e:17:27:05, bridge=xenbr0', 'mac=10:16:3e:17:27:05,
bridge=xenbr0', 'mac=20:16:1e:17:27:05, bridge=xenbr0' ]
to the configuration files.
Into the virtual machines I added to modprobe.conf
alias eth0 xennet
alias eth1 xennet
alias eth2 xennet
and
I configured the interfaces.
I had some problems with an interface in a virtual machine and I did:
rmmod xennet
because I would to unload and reload the module.
This operation crashed the server: dom0, dom1 and dom2 hungs.
I get this with putty:
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: ------------[ cut here ]------------
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: kernel BUG at drivers/xen/core/evtchn.c:481!
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: invalid opcode: 0000 [#1]
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: SMP
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: CPU: 2
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: EIP is at retrigger+0x22/0x38
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: eax: 00000000 ebx: 02080000 ecx: f5416000 edx: 00000023
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: esi: c06d3e00 edi: 00000114 ebp: 00000000 esp: c0cc0e5c
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: ds: 007b es: 007b ss: 0069
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: Process xenwatch (pid: 21, ti=c0cc0000 task=c0266620
task.ti=c0cc0000)
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: Stack: c04426c9 c06d3e00 00000114 c06d3e28 c044240d 00000000
00000000
c0d1a420
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: 000000f8 e0b29c00 e0b29c00 00000000 0000040c e0b29c00
ee22e8be
00000000
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: ee22ecd9 e0b29800 e0b29c00 c063e0a1 c054aad5 00000000
c063e145
0000040c
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: Call Trace:
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: [<c04426c9>] check_irq_resend+0x41/0x48
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: [<c044240d>] enable_irq+0x92/0xad
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: [<ee22e8be>] __netif_up+0xb/0x13 [netbk]
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: [<ee22ecd9>] netif_map+0x241/0x269 [netbk]
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: [<ee22e14f>] maybe_connect+0x2cc/0x49b [netbk]
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: [<c054c3fa>] otherend_changed+0x74/0x79
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: [<c054a94b>] xenwatch_handle_callback+0x12/0x44
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: [<c054b414>] xenwatch_thread+0x108/0x11e
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: [<c042df67>] kthread+0xc0/0xed
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: [<c0402a69>] kernel_thread_helper+0x5/0xb
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: DWARF2 unwinder stuck at kernel_thread_helper+0x5/0xb
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: Leftover inexact backtrace:
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: =======================
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: Code: 75 96 5e 5f 5b 5e 5f 5d c3 8b 04 85 a0 1d 7f c0 8b 0d c4
a7 66 c0
66 85 c0 74 20 0f b7 d0 0f a3 91 80 08 00 00 19 c0 85 c0 75 08 <0f> 0b e1 01 9b
d7 63
c0 f0 0f ab 91 00 08 00 00 b8 01 00 00 00
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: EIP: [<c05462ca>] retrigger+0x22/0x38 SS:ESP 0069:c0cc0e5c
>From 10.9.94.30 icmp_seq=676 Destination Host Unreachable
>From 10.9.94.30 icmp_seq=677 Destination Host Unreachable
>From 10.9.94.30 icmp_seq=678 Destination Host Unreachable
test2 kernel: Call Trace:
Message from syslogd@test2 at Thu Jul 5 14:33:23 2007 ...
test2 kernel: [<c914e39f>] netfront_remove+0x16/0x1a [xennet]
Message from syslogd@test2 at Thu Jul 5 14:33:23 2007 ...
test2 kernel: [<c054c4d6>] xenbus_dev_remove+0x27/0x38
Message from syslogd@test2 at Thu Jul 5 14:33:23 2007 ...
test2 kernel: [<c05416a4>] __device_release_driver+0x60/0x78
Message from syslogd@test2 at Thu Jul 5 14:33:23 2007 ...
test2 kernel: [<c0541999>] driver_detach+0x99/0xc9
Message from syslogd@test2 at Thu Jul 5 14:33:23 2007 ...
test2 kernel: [<c0540e3b>] bus_remove_driver+0x5a/0x78
Message from syslogd@test2 at Thu Jul 5 14:33:23 2007 ...
test2 kernel: [<c0541aac>] driver_unregister+0x8/0x13
Message from syslogd@test2 at Thu Jul 5 14:33:23 2007 ...
test2 kernel: [<c0436a25>] sys_delete_module+0x192/0x1b9
Message from syslogd@test2 at Thu Jul 5 14:33:23 2007 ...
test2 kernel: [<c0404ea7>] syscall_call+0x7/0xb
Message from syslogd@test2 at Thu Jul 5 14:33:23 2007 ...
test2 kernel: DWARF2 unwinder stuck at syscall_call+0x7/0xb
Message from syslogd@test2 at Thu Jul 5 14:33:23 2007 ...
test2 kernel: Leftover inexact backtrace:
Message from syslogd@test2 at Thu Jul 5 14:33:23 2007 ...
test2 kernel: =======================
Message from syslogd@test2 at Thu Jul 5 14:33:23 2007 ...
test2 kernel: Code: 97 e6 ff e8 34 a8 05 00 e9 19 f7 e7 ff 89 c2 8b 80 94 02 00
00 85
c0 75 0d 0f b7 42 64 29 c2 89 d0 e9 d7 50 eb ff 83 f8 03 74 08 <0f> 0b e2 0c 37
c6 64
c0 c7 82 94 02 00 00 04 00 00 00 8d 82 f0
Message from syslogd@test2 at Thu Jul 5 14:33:23 2007 ...
test2 kernel: EIP: [<c05acc81>] free_netdev+0x1e/0x3b SS:ESP 0069:c4603f10
[root@test2 network-scripts]# modprobe xennet
[root@test2 network-scripts]# service network stop
Arresto dell'interfaccia eth0: [ OK ]
Arresto dell'interfaccia eth1: [ OK ]
Arresto dell'interfaccia eth2: [ OK ]
Arresto dell'interfaccia di loopback: [ OK ]
[root@test2 network-scripts]# rmmod xennet
ERROR: Removing 'xennet': Device or resource busy
[root@test2 network-scripts]# lsof | grep xennet
[root@test2 network-scripts]# modprobe xennet
[root@test2 network-scripts]# poweroff
Broadcast message from root (xvc0) (Thu Jul 5 14:36:27 2007):
The system is going down for system halt NOW!
INIT: Sending processes the TERM signal
[root@test2 network-scripts]# Arresto di smartd: [ OK ]
Interruzione del demone HAL: [ OK ]
Interruzione di atd: [ OK ]
Interruzione di hpiod: [ OK ]
Interruzione di hpssd: [ OK ]
Interruzione di sshd: [ OK ]
Arresto di sm-client: [ OK ]
Arresto di sendmail: [ OK ]
Interruzione di crond: [ OK ]
Arresto di RPC idmapd: [ OK ]
Arresto bus di messaggio del sistema: [ OK ]
Interruzione di NFS statd: [ OK ]
Interruzione di mcstransd: [ OK ]
Interruzione di portmap: [ OK ]
Interruzione del demone PC/SC smart card(pcscd): [ OK ]
Arresto del logger del kernel: [ OK ]
Arresto del logger di sistema: [ OK ]
Arresto di hidd: [ OK ]
Arresto di restorecond: [ OK ]
Avvio di killall: [ OK ]
Sending all processes the TERM signal...
Sending all processes the KILL signal...
Saving random seed:
Syncing hardware clock to system time
Turning off swap:
Turning off quotas:
Unmounting pipe file systems:
Unmounting file systems:
Halting system...
<6>md: stopping all md devices.
xenbus_dev_shutdown: device/vif/2 timeout closing device
System halted.
[root@gb-ldap ~]# xm create PART_02
Using config file "/etc/xen/PART_02".
Going to boot Fedora Core (2.6.18-1.2798.fc6xen)
kernel: /vmlinuz-2.6.18-1.2798.fc6xen
initrd: /initrd-2.6.18-1.2798.fc6xen.img
Started domain PART_02
[root@gb-ldap ~]# xm console PART_02
rtc: IRQ 8 is not free.
rtc: IRQ 8 is not free.
i8042.c: No controller found.
Red Hat nash version 5.1.19 starting
Reading all physical volumes. This may take a while...
Found volume group "VolGroup00" using metadata type lvm2
2 logical volume(s) in volume group "VolGroup00" now active
Welcome to Fedora Core
Press 'I' to enter interactive startup.
Impostazione orologio (utc): gio lug 5 14:38:41 CEST 2007 [ OK ]
Avvio di udev: [ OK ]
Impostazione dell'hostname test2: [ OK ]
Impostazione del Logical Volume Management: 2 logical volume(s) in volume
group
"VolGroup00" now active
[ OK ]
Controllo dei filesystem:
Controllo di tutti i filesystem.
[/sbin/fsck.ext3 (1) -- /] fsck.ext3 -a /dev/VolGroup00/LogVol00
/dev/VolGroup00/LogVol00: clean, 106035/999936 files, 625529/999424 blocks
[/sbin/fsck.ext3 (1) -- /boot] fsck.ext3 -a /dev/xvda1
/boot: clean, 35/26104 files, 14879/104388 blocks
[ OK ]
Rimontaggio del filesystem root in modalitÃ? lettura-scrittura: [ OK ]
Montaggio dei filesystem locali: [ OK ]
Abilitazione quota dei filesystem locali: [ OK ]
Abilitazione delle swap /etc/fstab: [ OK ]
INIT: Entering runlevel: 3
Inizio avvio non interattivo
Attivazione dell'interfaccia di loopback: [ OK ]
Attivazione dell'interfaccia eth0:
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: ------------[ cut here ]------------
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: kernel BUG at drivers/xen/core/evtchn.c:481!
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: invalid opcode: 0000 [#1]
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: SMP
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: CPU: 2
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: EIP is at retrigger+0x22/0x38
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: eax: 00000000 ebx: 02080000 ecx: f5416000 edx: 00000023
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: esi: c06d3e00 edi: 00000114 ebp: 00000000 esp: c0cc0e5c
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: ds: 007b es: 007b ss: 0069
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: Process xenwatch (pid: 21, ti=c0cc0000 task=c0266620
task.ti=c0cc0000)
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: Stack: c04426c9 c06d3e00 00000114 c06d3e28 c044240d 00000000
00000000
c0d1a420
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: 000000f8 e0b29c00 e0b29c00 00000000 0000040c e0b29c00
ee22e8be
00000000
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: ee22ecd9 e0b29800 e0b29c00 c063e0a1 c054aad5 00000000
c063e145
0000040c
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: Call Trace:
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: [<c04426c9>] check_irq_resend+0x41/0x48
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: [<c044240d>] enable_irq+0x92/0xad
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: [<ee22e8be>] __netif_up+0xb/0x13 [netbk]
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: [<ee22ecd9>] netif_map+0x241/0x269 [netbk]
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: [<ee22e14f>] maybe_connect+0x2cc/0x49b [netbk]
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: [<c054c3fa>] otherend_changed+0x74/0x79
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: [<c054a94b>] xenwatch_handle_callback+0x12/0x44
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: [<c054b414>] xenwatch_thread+0x108/0x11e
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: [<c042df67>] kthread+0xc0/0xed
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: [<c0402a69>] kernel_thread_helper+0x5/0xb
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: DWARF2 unwinder stuck at kernel_thread_helper+0x5/0xb
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: Leftover inexact backtrace:
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: =======================
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: Code: 75 96 5e 5f 5b 5e 5f 5d c3 8b 04 85 a0 1d 7f c0 8b 0d c4
a7 66 c0
66 85 c0 74 20 0f b7 d0 0f a3 91 80 08 00 00 19 c0 85 c0 75 08 <0f> 0b e1 01 9b
d7 63
c0 f0 0f ab 91 00 08 00 00 b8 01 00 00 00
Message from syslogd@gb-ldap at Thu Jul 5 14:39:22 2007 ...
gb-ldap kernel: EIP: [<c05462ca>] retrigger+0x22/0x38 SS:ESP 0069:c0cc0e5c
[ OK ]
Attivazione dell'interfaccia eth1:
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